Watch Darker Than Black: Kuro No Keiyakusha (du... Site

: Each Contractor possesses a unique supernatural ability.

Exploring the Shadowy World of Darker than Black: Kuro no Keiyakusha Watch Darker than Black: Kuro no Keiyakusha (Du...

: In exchange for their gifts, Contractors lose most of their human emotions, making them the perfect, cold-blooded tools for government agencies and criminal syndicates. Meet Hei: The "Black Reaper" Nana Mizuki : Each Contractor possesses a unique supernatural ability